dik:f:15cm ,Ho:10cm ,So:45cm .dit:a:Si....?,b:m:...?,c:h....?,d:p....?

a. 1/15 – 1/45
2/45 = 1/si
si = 45/2 = 22,5 cm

b. 22,5/45 = ½

c. h = ½ × 10 = 5 cm

d. (maksudnya sifat?) di ruang 2, nyata , terbalik, diperkecil